diff options
Diffstat (limited to 'libavutil/opt.c')
| -rw-r--r-- | libavutil/opt.c | 1458 |
1 files changed, 1299 insertions, 159 deletions
diff --git a/libavutil/opt.c b/libavutil/opt.c index 44d6299..df88663 100644 --- a/libavutil/opt.c +++ b/libavutil/opt.c @@ -2,20 +2,20 @@ * AVOptions * Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -25,19 +25,30 @@ * @author Michael Niedermayer <michaelni@gmx.at> */ -#include "avstring.h" #include "avutil.h" +#include "avassert.h" +#include "avstring.h" +#include "channel_layout.h" #include "common.h" #include "dict.h" #include "eval.h" #include "log.h" +#include "parseutils.h" +#include "pixdesc.h" #include "mathematics.h" #include "opt.h" +#include "samplefmt.h" +#include "bprint.h" + +#include <float.h> const AVOption *av_opt_next(const void *obj, const AVOption *last) { - AVClass *class = *(AVClass **)obj; - if (!last && class->option && class->option[0].name) + const AVClass *class; + if (!obj) + return NULL; + class = *(const AVClass**)obj; + if (!last && class && class->option && class->option[0].name) return class->option; if (last && last[1].name) return ++last; @@ -48,12 +59,22 @@ static int read_number(const AVOption *o, const void *dst, double *num, int *den { switch (o->type) { case AV_OPT_TYPE_FLAGS: - *intnum = *(unsigned int *)dst; + *intnum = *(unsigned int*)dst; + return 0; + case AV_OPT_TYPE_PIXEL_FMT: + *intnum = *(enum AVPixelFormat *)dst; return 0; + case AV_OPT_TYPE_SAMPLE_FMT: + *intnum = *(enum AVSampleFormat *)dst; + return 0; + case AV_OPT_TYPE_BOOL: case AV_OPT_TYPE_INT: *intnum = *(int *)dst; return 0; + case AV_OPT_TYPE_CHANNEL_LAYOUT: + case AV_OPT_TYPE_DURATION: case AV_OPT_TYPE_INT64: + case AV_OPT_TYPE_UINT64: *intnum = *(int64_t *)dst; return 0; case AV_OPT_TYPE_FLOAT: @@ -66,6 +87,9 @@ static int read_number(const AVOption *o, const void *dst, double *num, int *den *intnum = ((AVRational *)dst)->num; *den = ((AVRational *)dst)->den; return 0; + case AV_OPT_TYPE_CONST: + *num = o->default_val.dbl; + return 0; } return AVERROR(EINVAL); } @@ -73,27 +97,65 @@ static int read_number(const AVOption *o, const void *dst, double *num, int *den static int write_number(void *obj, const AVOption *o, void *dst, double num, int den, int64_t intnum) { if (o->type != AV_OPT_TYPE_FLAGS && - (o->max * den < num * intnum || o->min * den > num * intnum)) { - av_log(obj, AV_LOG_ERROR, "Value %f for parameter '%s' out of range\n", - num * intnum / den, o->name); + (!den || o->max * den < num * intnum || o->min * den > num * intnum)) { + num = den ? num * intnum / den : (num && intnum ? INFINITY : NAN); + av_log(obj, AV_LOG_ERROR, "Value %f for parameter '%s' out of range [%g - %g]\n", + num, o->name, o->min, o->max); return AVERROR(ERANGE); } + if (o->type == AV_OPT_TYPE_FLAGS) { + double d = num*intnum/den; + if (d < -1.5 || d > 0xFFFFFFFF+0.5 || (llrint(d*256) & 255)) { + av_log(obj, AV_LOG_ERROR, + "Value %f for parameter '%s' is not a valid set of 32bit integer flags\n", + num*intnum/den, o->name); + return AVERROR(ERANGE); + } + } switch (o->type) { + case AV_OPT_TYPE_PIXEL_FMT: + *(enum AVPixelFormat *)dst = llrint(num / den) * intnum; + break; + case AV_OPT_TYPE_SAMPLE_FMT: + *(enum AVSampleFormat *)dst = llrint(num / den) * intnum; + break; + case AV_OPT_TYPE_BOOL: case AV_OPT_TYPE_FLAGS: case AV_OPT_TYPE_INT: *(int *)dst = llrint(num / den) * intnum; break; - case AV_OPT_TYPE_INT64: - *(int64_t *)dst = llrint(num / den) * intnum; - break; + case AV_OPT_TYPE_DURATION: + case AV_OPT_TYPE_CHANNEL_LAYOUT: + case AV_OPT_TYPE_INT64:{ + double d = num / den; + if (intnum == 1 && d == (double)INT64_MAX) { + *(int64_t *)dst = INT64_MAX; + } else + *(int64_t *)dst = llrint(d) * intnum; + break;} + case AV_OPT_TYPE_UINT64:{ + double d = num / den; + // We must special case uint64_t here as llrint() does not support values + // outside the int64_t range and there is no portable function which does + // "INT64_MAX + 1ULL" is used as it is representable exactly as IEEE double + // while INT64_MAX is not + if (intnum == 1 && d == (double)UINT64_MAX) { + *(uint64_t *)dst = UINT64_MAX; + } else if (d > INT64_MAX + 1ULL) { + *(uint64_t *)dst = (llrint(d - (INT64_MAX + 1ULL)) + (INT64_MAX + 1ULL))*intnum; + } else { + *(uint64_t *)dst = llrint(d) * intnum; + } + break;} case AV_OPT_TYPE_FLOAT: *(float *)dst = num * intnum / den; break; case AV_OPT_TYPE_DOUBLE: - *(double *)dst = num * intnum / den; + *(double *)dst = num * intnum / den; break; case AV_OPT_TYPE_RATIONAL: + case AV_OPT_TYPE_VIDEO_RATE: if ((int) num == num) *(AVRational *)dst = (AVRational) { num *intnum, den }; else @@ -105,22 +167,7 @@ static int write_number(void *obj, const AVOption *o, void *dst, double num, int return 0; } -static const double const_values[] = { - M_PI, - M_E, - FF_QP2LAMBDA, - 0 -}; - -static const char *const const_names[] = { - "PI", - "E", - "QP2LAMBDA", - 0 -}; - -static int hexchar2int(char c) -{ +static int hexchar2int(char c) { if (c >= '0' && c <= '9') return c - '0'; if (c >= 'a' && c <= 'f') @@ -134,11 +181,14 @@ static int set_string_binary(void *obj, const AVOption *o, const char *val, uint { int *lendst = (int *)(dst + 1); uint8_t *bin, *ptr; - int len = strlen(val); + int len; av_freep(dst); *lendst = 0; + if (!val || !(len = strlen(val))) + return 0; + if (len & 1) return AVERROR(EINVAL); len /= 2; @@ -169,6 +219,7 @@ static int set_string(void *obj, const AVOption *o, const char *val, uint8_t **d } #define DEFAULT_NUMVAL(opt) ((opt->type == AV_OPT_TYPE_INT64 || \ + opt->type == AV_OPT_TYPE_UINT64 || \ opt->type == AV_OPT_TYPE_CONST || \ opt->type == AV_OPT_TYPE_FLAGS || \ opt->type == AV_OPT_TYPE_INT) \ @@ -177,42 +228,69 @@ static int set_string(void *obj, const AVOption *o, const char *val, uint8_t **d static int set_string_number(void *obj, void *target_obj, const AVOption *o, const char *val, void *dst) { - int ret = 0, notfirst = 0; + int ret = 0; + int num, den; + char c; + + if (sscanf(val, "%d%*1[:/]%d%c", &num, &den, &c) == 2) { + if ((ret = write_number(obj, o, dst, 1, den, num)) >= 0) + return ret; + ret = 0; + } + for (;;) { - int i, den = 1; + int i = 0; char buf[256]; int cmd = 0; - double d, num = 1; + double d; int64_t intnum = 1; - i = 0; - if (*val == '+' || *val == '-') { - if (o->type == AV_OPT_TYPE_FLAGS) + if (o->type == AV_OPT_TYPE_FLAGS) { + if (*val == '+' || *val == '-') cmd = *(val++); - else if (!notfirst) - buf[i++] = *val; + for (; i < sizeof(buf) - 1 && val[i] && val[i] != '+' && val[i] != '-'; i++) + buf[i] = val[i]; + buf[i] = 0; } - for (; i < sizeof(buf) - 1 && val[i] && val[i] != '+' && val[i] != '-'; i++) - buf[i] = val[i]; - buf[i] = 0; - { - const AVOption *o_named = av_opt_find(target_obj, buf, o->unit, 0, 0); + const AVOption *o_named = av_opt_find(target_obj, i ? buf : val, o->unit, 0, 0); + int res; + int ci = 0; + double const_values[64]; + const char * const_names[64]; if (o_named && o_named->type == AV_OPT_TYPE_CONST) d = DEFAULT_NUMVAL(o_named); - else if (!strcmp(buf, "default")) - d = DEFAULT_NUMVAL(o); - else if (!strcmp(buf, "max")) - d = o->max; - else if (!strcmp(buf, "min")) - d = o->min; - else if (!strcmp(buf, "none")) - d = 0; - else if (!strcmp(buf, "all")) - d = ~0; else { - int res = av_expr_parse_and_eval(&d, buf, const_names, const_values, NULL, NULL, NULL, NULL, NULL, 0, obj); + if (o->unit) { + for (o_named = NULL; o_named = av_opt_next(target_obj, o_named); ) { + if (o_named->type == AV_OPT_TYPE_CONST && + o_named->unit && + !strcmp(o_named->unit, o->unit)) { + if (ci + 6 >= FF_ARRAY_ELEMS(const_values)) { + av_log(obj, AV_LOG_ERROR, "const_values array too small for %s\n", o->unit); + return AVERROR_PATCHWELCOME; + } + const_names [ci ] = o_named->name; + const_values[ci++] = DEFAULT_NUMVAL(o_named); + } + } + } + const_names [ci ] = "default"; + const_values[ci++] = DEFAULT_NUMVAL(o); + const_names [ci ] = "max"; + const_values[ci++] = o->max; + const_names [ci ] = "min"; + const_values[ci++] = o->min; + const_names [ci ] = "none"; + const_values[ci++] = 0; + const_names [ci ] = "all"; + const_values[ci++] = ~0; + const_names [ci] = NULL; + const_values[ci] = 0; + + res = av_expr_parse_and_eval(&d, i ? buf : val, const_names, + const_values, NULL, NULL, NULL, NULL, NULL, 0, obj); if (res < 0) { av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\"\n", val); return res; @@ -224,35 +302,171 @@ static int set_string_number(void *obj, void *target_obj, const AVOption *o, con if (cmd == '+') d = intnum | (int64_t)d; else if (cmd == '-') - d = intnum & ~(int64_t)d; - } else { - read_number(o, dst, &num, &den, &intnum); - if (cmd == '+') - d = notfirst * num * intnum / den + d; - else if (cmd == '-') - d = notfirst * num * intnum / den - d; + d = intnum &~(int64_t)d; } if ((ret = write_number(obj, o, dst, d, 1, 1)) < 0) return ret; val += i; - if (!*val) + if (!i || !*val) return 0; - notfirst = 1; } } +static int set_string_image_size(void *obj, const AVOption *o, const char *val, int *dst) +{ + int ret; + + if (!val || !strcmp(val, "none")) { + dst[0] = + dst[1] = 0; + return 0; + } + ret = av_parse_video_size(dst, dst + 1, val); + if (ret < 0) + av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as image size\n", val); + return ret; +} + +static int set_string_video_rate(void *obj, const AVOption *o, const char *val, AVRational *dst) +{ + int ret; + if (!val) { + ret = AVERROR(EINVAL); + } else { + ret = av_parse_video_rate(dst, val); + } + if (ret < 0) + av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as video rate\n", val); + return ret; +} + +static int set_string_color(void *obj, const AVOption *o, const char *val, uint8_t *dst) +{ + int ret; + + if (!val) { + return 0; + } else { + ret = av_parse_color(dst, val, -1, obj); + if (ret < 0) + av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as color\n", val); + return ret; + } + return 0; +} + +static const char *get_bool_name(int val) +{ + if (val < 0) + return "auto"; + return val ? "true" : "false"; +} + +static int set_string_bool(void *obj, const AVOption *o, const char *val, int *dst) +{ + int n; + + if (!val) + return 0; + + if (!strcmp(val, "auto")) { + n = -1; + } else if (av_match_name(val, "true,y,yes,enable,enabled,on")) { + n = 1; + } else if (av_match_name(val, "false,n,no,disable,disabled,off")) { + n = 0; + } else { + char *end = NULL; + n = strtol(val, &end, 10); + if (val + strlen(val) != end) + goto fail; + } + + if (n < o->min || n > o->max) + goto fail; + + *dst = n; + return 0; + +fail: + av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as boolean\n", val); + return AVERROR(EINVAL); +} + +static int set_string_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst, + int fmt_nb, int ((*get_fmt)(const char *)), const char *desc) +{ + int fmt, min, max; + + if (!val || !strcmp(val, "none")) { + fmt = -1; + } else { + fmt = get_fmt(val); + if (fmt == -1) { + char *tail; + fmt = strtol(val, &tail, 0); + if (*tail || (unsigned)fmt >= fmt_nb) { + av_log(obj, AV_LOG_ERROR, + "Unable to parse option value \"%s\" as %s\n", val, desc); + return AVERROR(EINVAL); + } + } + } + + min = FFMAX(o->min, -1); + max = FFMIN(o->max, fmt_nb-1); + + // hack for compatibility with old ffmpeg + if(min == 0 && max == 0) { + min = -1; + max = fmt_nb-1; + } + + if (fmt < min || fmt > max) { + av_log(obj, AV_LOG_ERROR, + "Value %d for parameter '%s' out of %s format range [%d - %d]\n", + fmt, o->name, desc, min, max); + return AVERROR(ERANGE); + } + + *(int *)dst = fmt; + return 0; +} + +static int set_string_pixel_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst) +{ + return set_string_fmt(obj, o, val, dst, + AV_PIX_FMT_NB, av_get_pix_fmt, "pixel format"); +} + +static int set_string_sample_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst) +{ + return set_string_fmt(obj, o, val, dst, + AV_SAMPLE_FMT_NB, av_get_sample_fmt, "sample format"); +} + int av_opt_set(void *obj, const char *name, const char *val, int search_flags) { + int ret = 0; void *dst, *target_obj; const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj); if (!o || !target_obj) return AVERROR_OPTION_NOT_FOUND; - if (!val || o->flags & AV_OPT_FLAG_READONLY) + if (!val && (o->type != AV_OPT_TYPE_STRING && + o->type != AV_OPT_TYPE_PIXEL_FMT && o->type != AV_OPT_TYPE_SAMPLE_FMT && + o->type != AV_OPT_TYPE_IMAGE_SIZE && o->type != AV_OPT_TYPE_VIDEO_RATE && + o->type != AV_OPT_TYPE_DURATION && o->type != AV_OPT_TYPE_COLOR && + o->type != AV_OPT_TYPE_CHANNEL_LAYOUT && o->type != AV_OPT_TYPE_BOOL)) + return AVERROR(EINVAL); + + if (o->flags & AV_OPT_FLAG_READONLY) return AVERROR(EINVAL); dst = ((uint8_t *)target_obj) + o->offset; switch (o->type) { + case AV_OPT_TYPE_BOOL: + return set_string_bool(obj, o, val, dst); case AV_OPT_TYPE_STRING: return set_string(obj, o, val, dst); case AV_OPT_TYPE_BINARY: @@ -260,10 +474,49 @@ int av_opt_set(void *obj, const char *name, const char *val, int search_flags) case AV_OPT_TYPE_FLAGS: case AV_OPT_TYPE_INT: case AV_OPT_TYPE_INT64: + case AV_OPT_TYPE_UINT64: case AV_OPT_TYPE_FLOAT: case AV_OPT_TYPE_DOUBLE: case AV_OPT_TYPE_RATIONAL: return set_string_number(obj, target_obj, o, val, dst); + case AV_OPT_TYPE_IMAGE_SIZE: + return set_string_image_size(obj, o, val, dst); + case AV_OPT_TYPE_VIDEO_RATE: { + AVRational tmp; + ret = set_string_video_rate(obj, o, val, &tmp); + if (ret < 0) + return ret; + return write_number(obj, o, dst, 1, tmp.den, tmp.num); + } + case AV_OPT_TYPE_PIXEL_FMT: + return set_string_pixel_fmt(obj, o, val, dst); + case AV_OPT_TYPE_SAMPLE_FMT: + return set_string_sample_fmt(obj, o, val, dst); + case AV_OPT_TYPE_DURATION: + if (!val) { + *(int64_t *)dst = 0; + return 0; + } else { + if ((ret = av_parse_time(dst, val, 1)) < 0) + av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as duration\n", val); + return ret; + } + break; + case AV_OPT_TYPE_COLOR: + return set_string_color(obj, o, val, dst); + case AV_OPT_TYPE_CHANNEL_LAYOUT: + if (!val || !strcmp(val, "none")) { + *(int64_t *)dst = 0; + } else { + int64_t cl = av_get_channel_layout(val); + if (!cl) { + av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as channel layout\n", val); + ret = AVERROR(EINVAL); + } + *(int64_t *)dst = cl; + return ret; + } + break; } av_log(obj, AV_LOG_ERROR, "Invalid option type.\n"); @@ -331,8 +584,8 @@ int av_opt_set_bin(void *obj, const char *name, const uint8_t *val, int len, int if (o->type != AV_OPT_TYPE_BINARY || o->flags & AV_OPT_FLAG_READONLY) return AVERROR(EINVAL); - ptr = av_malloc(len); - if (!ptr) + ptr = len ? av_malloc(len) : NULL; + if (len && !ptr) return AVERROR(ENOMEM); dst = (uint8_t **)(((uint8_t *)target_obj) + o->offset); @@ -341,11 +594,106 @@ int av_opt_set_bin(void *obj, const char *name, const uint8_t *val, int len, int av_free(*dst); *dst = ptr; *lendst = len; - memcpy(ptr, val, len); + if (len) + memcpy(ptr, val, len); return 0; } +int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_flags) +{ + void *target_obj; + const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj); + + if (!o || !target_obj) + return AVERROR_OPTION_NOT_FOUND; + if (o->type != AV_OPT_TYPE_IMAGE_SIZE) { + av_log(obj, AV_LOG_ERROR, + "The value set by option '%s' is not an image size.\n", o->name); + return AVERROR(EINVAL); + } + if (w<0 || h<0) { + av_log(obj, AV_LOG_ERROR, + "Invalid negative size value %dx%d for size '%s'\n", w, h, o->name); + return AVERROR(EINVAL); + } + *(int *)(((uint8_t *)target_obj) + o->offset) = w; + *(int *)(((uint8_t *)target_obj+sizeof(int)) + o->offset) = h; + return 0; +} + +int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int search_flags) +{ + void *target_obj; + const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj); + + if (!o || !target_obj) + return AVERROR_OPTION_NOT_FOUND; + if (o->type != AV_OPT_TYPE_VIDEO_RATE) { + av_log(obj, AV_LOG_ERROR, + "The value set by option '%s' is not a video rate.\n", o->name); + return AVERROR(EINVAL); + } + if (val.num <= 0 || val.den <= 0) + return AVERROR(EINVAL); + return set_number(obj, name, val.num, val.den, 1, search_flags); +} + +static int set_format(void *obj, const char *name, int fmt, int search_flags, + enum AVOptionType type, const char *desc, int nb_fmts) +{ + void *target_obj; + const AVOption *o = av_opt_find2(obj, name, NULL, 0, + search_flags, &target_obj); + int min, max; + + if (!o || !target_obj) + return AVERROR_OPTION_NOT_FOUND; + if (o->type != type) { + av_log(obj, AV_LOG_ERROR, + "The value set by option '%s' is not a %s format", name, desc); + return AVERROR(EINVAL); + } + + min = FFMAX(o->min, -1); + max = FFMIN(o->max, nb_fmts-1); + + if (fmt < min || fmt > max) { + av_log(obj, AV_LOG_ERROR, + "Value %d for parameter '%s' out of %s format range [%d - %d]\n", + fmt, name, desc, min, max); + return AVERROR(ERANGE); + } + *(int *)(((uint8_t *)target_obj) + o->offset) = fmt; + return 0; +} + +int av_opt_set_pixel_fmt(void *obj, const char *name, enum AVPixelFormat fmt, int search_flags) +{ + return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_PIXEL_FMT, "pixel", AV_PIX_FMT_NB); +} + +int av_opt_set_sample_fmt(void *obj, const char *name, enum AVSampleFormat fmt, int search_flags) +{ + return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_SAMPLE_FMT, "sample", AV_SAMPLE_FMT_NB); +} + +int av_opt_set_channel_layout(void *obj, const char *name, int64_t cl, int search_flags) +{ + void *target_obj; + const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj); + + if (!o || !target_obj) + return AVERROR_OPTION_NOT_FOUND; + if (o->type != AV_OPT_TYPE_CHANNEL_LAYOUT) { + av_log(obj, AV_LOG_ERROR, + "The value set by option '%s' is not a channel layout.\n", o->name); + return AVERROR(EINVAL); + } + *(int64_t *)(((uint8_t *)target_obj) + o->offset) = cl; + return 0; +} + int av_opt_set_dict_val(void *obj, const char *name, const AVDictionary *val, int search_flags) { @@ -365,20 +713,59 @@ int av_opt_set_dict_val(void *obj, const char *name, const AVDictionary *val, return 0; } +static void format_duration(char *buf, size_t size, int64_t d) +{ + char *e; + + av_assert0(size >= 25); + if (d < 0 && d != INT64_MIN) { + *(buf++) = '-'; + size--; + d = -d; + } + if (d == INT64_MAX) + snprintf(buf, size, "INT64_MAX"); + else if (d == INT64_MIN) + snprintf(buf, size, "INT64_MIN"); + else if (d > (int64_t)3600*1000000) + snprintf(buf, size, "%"PRId64":%02d:%02d.%06d", d / 3600000000, + (int)((d / 60000000) % 60), + (int)((d / 1000000) % 60), + (int)(d % 1000000)); + else if (d > 60*1000000) + snprintf(buf, size, "%d:%02d.%06d", + (int)(d / 60000000), + (int)((d / 1000000) % 60), + (int)(d % 1000000)); + else + snprintf(buf, size, "%d.%06d", + (int)(d / 1000000), + (int)(d % 1000000)); + e = buf + strlen(buf); + while (e > buf && e[-1] == '0') + *(--e) = 0; + if (e > buf && e[-1] == '.') + *(--e) = 0; +} + int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val) { void *dst, *target_obj; const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj); uint8_t *bin, buf[128]; int len, i, ret; + int64_t i64; - if (!o || !target_obj) + if (!o || !target_obj || (o->offset<=0 && o->type != AV_OPT_TYPE_CONST)) return AVERROR_OPTION_NOT_FOUND; dst = (uint8_t *)target_obj + o->offset; buf[0] = 0; switch (o->type) { + case AV_OPT_TYPE_BOOL: + ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(get_bool_name(*(int *)dst), "invalid")); + break; case AV_OPT_TYPE_FLAGS: ret = snprintf(buf, sizeof(buf), "0x%08X", *(int *)dst); break; @@ -386,7 +773,10 @@ int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val) ret = snprintf(buf, sizeof(buf), "%d", *(int *)dst); break; case AV_OPT_TYPE_INT64: - ret = snprintf(buf, sizeof(buf), "%" PRId64, *(int64_t *)dst); + ret = snprintf(buf, sizeof(buf), "%"PRId64, *(int64_t *)dst); + break; + case AV_OPT_TYPE_UINT64: + ret = snprintf(buf, sizeof(buf), "%"PRIu64, *(uint64_t *)dst); break; case AV_OPT_TYPE_FLOAT: ret = snprintf(buf, sizeof(buf), "%f", *(float *)dst); @@ -394,26 +784,64 @@ int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val) case AV_OPT_TYPE_DOUBLE: ret = snprintf(buf, sizeof(buf), "%f", *(double *)dst); break; + case AV_OPT_TYPE_VIDEO_RATE: case AV_OPT_TYPE_RATIONAL: - ret = snprintf(buf, sizeof(buf), "%d/%d", ((AVRational *)dst)->num, - ((AVRational *)dst)->den); + ret = snprintf(buf, sizeof(buf), "%d/%d", ((AVRational *)dst)->num, ((AVRational *)dst)->den); + break; + case AV_OPT_TYPE_CONST: + ret = snprintf(buf, sizeof(buf), "%f", o->default_val.dbl); break; case AV_OPT_TYPE_STRING: - if (*(uint8_t **)dst) + if (*(uint8_t **)dst) { *out_val = av_strdup(*(uint8_t **)dst); - else + } else if (search_flags & AV_OPT_ALLOW_NULL) { + *out_val = NULL; + return 0; + } else { *out_val = av_strdup(""); + } return *out_val ? 0 : AVERROR(ENOMEM); case AV_OPT_TYPE_BINARY: + if (!*(uint8_t **)dst && (search_flags & AV_OPT_ALLOW_NULL)) { + *out_val = NULL; + return 0; + } len = *(int *)(((uint8_t *)dst) + sizeof(uint8_t *)); if ((uint64_t)len * 2 + 1 > INT_MAX) return AVERROR(EINVAL); if (!(*out_val = av_malloc(len * 2 + 1))) return AVERROR(ENOMEM); + if (!len) { + *out_val[0] = '\0'; + return 0; + } bin = *(uint8_t **)dst; for (i = 0; i < len; i++) snprintf(*out_val + i * 2, 3, "%02X", bin[i]); return 0; + case AV_OPT_TYPE_IMAGE_SIZE: + ret = snprintf(buf, sizeof(buf), "%dx%d", ((int *)dst)[0], ((int *)dst)[1]); + break; + case AV_OPT_TYPE_PIXEL_FMT: + ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_pix_fmt_name(*(enum AVPixelFormat *)dst), "none")); + break; + case AV_OPT_TYPE_SAMPLE_FMT: + ret = snprintf(buf, sizeof(buf), "%s", (char *)av_x_if_null(av_get_sample_fmt_name(*(enum AVSampleFormat *)dst), "none")); + break; + case AV_OPT_TYPE_DURATION: + i64 = *(int64_t *)dst; + format_duration(buf, sizeof(buf), i64); + ret = strlen(buf); // no overflow possible, checked by an assert + break; + case AV_OPT_TYPE_COLOR: + ret = snprintf(buf, sizeof(buf), "0x%02x%02x%02x%02x", + (int)((uint8_t *)dst)[0], (int)((uint8_t *)dst)[1], + (int)((uint8_t *)dst)[2], (int)((uint8_t *)dst)[3]); + break; + case AV_OPT_TYPE_CHANNEL_LAYOUT: + i64 = *(int64_t *)dst; + ret = snprintf(buf, sizeof(buf), "0x%"PRIx64, i64); + break; default: return AVERROR(EINVAL); } @@ -424,7 +852,7 @@ int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val) return *out_val ? 0 : AVERROR(ENOMEM); } -static int get_number(void *obj, const char *name, double *num, int *den, int64_t *intnum, +static int get_number(void *obj, const char *name, const AVOption **o_out, double *num, int *den, int64_t *intnum, int search_flags) { void *dst, *target_obj; @@ -434,6 +862,8 @@ static int get_number(void *obj, const char *name, double *num, int *den, int64_ dst = ((uint8_t *)target_obj) + o->offset; + if (o_out) *o_out= o; + return read_number(o, dst, num, den, intnum); error: @@ -448,7 +878,7 @@ int av_opt_get_int(void *obj, const char *name, int search_flags, int64_t *out_v double num = 1; int ret, den = 1; - if ((ret = get_number(obj, name, &num, &den, &intnum, search_flags)) < 0) + if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0) return ret; *out_val = num * intnum / den; return 0; @@ -460,7 +890,7 @@ int av_opt_get_double(void *obj, const char *name, int search_flags, double *out double num = 1; int ret, den = 1; - if ((ret = get_number(obj, name, &num, &den, &intnum, search_flags)) < 0) + if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0) return ret; *out_val = num * intnum / den; return 0; @@ -472,7 +902,41 @@ int av_opt_get_q(void *obj, const char *name, int search_flags, AVRational *out_ double num = 1; int ret, den = 1; - if ((ret = get_number(obj, name, &num, &den, &intnum, search_flags)) < 0) + if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0) + return ret; + + if (num == 1.0 && (int)intnum == intnum) + *out_val = (AVRational){intnum, den}; + else + *out_val = av_d2q(num*intnum/den, 1<<24); + return 0; +} + +int av_opt_get_image_size(void *obj, const char *name, int search_flags, int *w_out, int *h_out) +{ + void *dst, *target_obj; + const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj); + if (!o || !target_obj) + return AVERROR_OPTION_NOT_FOUND; + if (o->type != AV_OPT_TYPE_IMAGE_SIZE) { + av_log(obj, AV_LOG_ERROR, + "The value for option '%s' is not an image size.\n", name); + return AVERROR(EINVAL); + } + + dst = ((uint8_t*)target_obj) + o->offset; + if (w_out) *w_out = *(int *)dst; + if (h_out) *h_out = *((int *)dst+1); + return 0; +} + +int av_opt_get_video_rate(void *obj, const char *name, int search_flags, AVRational *out_val) +{ + int64_t intnum = 1; + double num = 1; + int ret, den = 1; + + if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0) return ret; if (num == 1.0 && (int)intnum == intnum) @@ -482,6 +946,51 @@ int av_opt_get_q(void *obj, const char *name, int search_flags, AVRational *out_ return 0; } +static int get_format(void *obj, const char *name, int search_flags, int *out_fmt, + enum AVOptionType type, const char *desc) +{ + void *dst, *target_obj; + const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj); + if (!o || !target_obj) + return AVERROR_OPTION_NOT_FOUND; + if (o->type != type) { + av_log(obj, AV_LOG_ERROR, + "The value for option '%s' is not a %s format.\n", desc, name); + return AVERROR(EINVAL); + } + + dst = ((uint8_t*)target_obj) + o->offset; + *out_fmt = *(int *)dst; + return 0; +} + +int av_opt_get_pixel_fmt(void *obj, const char *name, int search_flags, enum AVPixelFormat *out_fmt) +{ + return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_PIXEL_FMT, "pixel"); +} + +int av_opt_get_sample_fmt(void *obj, const char *name, int search_flags, enum AVSampleFormat *out_fmt) +{ + return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_SAMPLE_FMT, "sample"); +} + +int av_opt_get_channel_layout(void *obj, const char *name, int search_flags, int64_t *cl) +{ + void *dst, *target_obj; + const AVOption *o = av_opt_find2(obj, name, NULL, 0, search_flags, &target_obj); + if (!o || !target_obj) + return AVERROR_OPTION_NOT_FOUND; + if (o->type != AV_OPT_TYPE_CHANNEL_LAYOUT) { + av_log(obj, AV_LOG_ERROR, + "The value for option '%s' is not a channel layout.\n", name); + return AVERROR(EINVAL); + } + + dst = ((uint8_t*)target_obj) + o->offset; + *cl = *(int64_t *)dst; + return 0; +} + int av_opt_get_dict_val(void *obj, const char *name, int search_flags, AVDictionary **out_val) { void *target_obj; @@ -512,10 +1021,79 @@ int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name) return res & flag->default_val.i64; } +static void log_value(void *av_log_obj, int level, double d) +{ + if (d == INT_MAX) { + av_log(av_log_obj, level, "INT_MAX"); + } else if (d == INT_MIN) { + av_log(av_log_obj, level, "INT_MIN"); + } else if (d == UINT32_MAX) { + av_log(av_log_obj, level, "UINT32_MAX"); + } else if (d == (double)INT64_MAX) { + av_log(av_log_obj, level, "I64_MAX"); + } else if (d == INT64_MIN) { + av_log(av_log_obj, level, "I64_MIN"); + } else if (d == FLT_MAX) { + av_log(av_log_obj, level, "FLT_MAX"); + } else if (d == FLT_MIN) { + av_log(av_log_obj, level, "FLT_MIN"); + } else if (d == -FLT_MAX) { + av_log(av_log_obj, level, "-FLT_MAX"); + } else if (d == -FLT_MIN) { + av_log(av_log_obj, level, "-FLT_MIN"); + } else if (d == DBL_MAX) { + av_log(av_log_obj, level, "DBL_MAX"); + } else if (d == DBL_MIN) { + av_log(av_log_obj, level, "DBL_MIN"); + } else if (d == -DBL_MAX) { + av_log(av_log_obj, level, "-DBL_MAX"); + } else if (d == -DBL_MIN) { + av_log(av_log_obj, level, "-DBL_MIN"); + } else { + av_log(av_log_obj, level, "%g", d); + } +} + +static const char *get_opt_const_name(void *obj, const char *unit, int64_t value) +{ + const AVOption *opt = NULL; + + if (!unit) + return NULL; + while ((opt = av_opt_next(obj, opt))) + if (opt->type == AV_OPT_TYPE_CONST && !strcmp(opt->unit, unit) && + opt->default_val.i64 == value) + return opt->name; + return NULL; +} + +static char *get_opt_flags_string(void *obj, const char *unit, int64_t value) +{ + const AVOption *opt = NULL; + char flags[512]; + + flags[0] = 0; + if (!unit) + return NULL; + while ((opt = av_opt_next(obj, opt))) { + if (opt->type == AV_OPT_TYPE_CONST && !strcmp(opt->unit, unit) && + opt->default_val.i64 & value) { + if (flags[0]) + av_strlcatf(flags, sizeof(flags), "+"); + av_strlcatf(flags, sizeof(flags), "%s", opt->name); + } + } + if (flags[0]) + return av_strdup(flags); + return NULL; +} + static void opt_list(void *obj, void *av_log_obj, const char *unit, int req_flags, int rej_flags) { const AVOption *opt = NULL; + AVOptionRanges *r; + int i; while ((opt = av_opt_next(obj, opt))) { if (!(opt->flags & req_flags) || (opt->flags & rej_flags)) @@ -532,50 +1110,166 @@ static void opt_list(void *obj, void *av_log_obj, const char *unit, else if (unit && opt->type == AV_OPT_TYPE_CONST && strcmp(unit, opt->unit)) continue; else if (unit && opt->type == AV_OPT_TYPE_CONST) - av_log(av_log_obj, AV_LOG_INFO, " %-15s ", opt->name); + av_log(av_log_obj, AV_LOG_INFO, " %-15s ", opt->name); else - av_log(av_log_obj, AV_LOG_INFO, "-%-17s ", opt->name); + av_log(av_log_obj, AV_LOG_INFO, " %s%-17s ", + (opt->flags & AV_OPT_FLAG_FILTERING_PARAM) ? "" : "-", + opt->name); switch (opt->type) { - case AV_OPT_TYPE_FLAGS: - av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<flags>"); - break; - case AV_OPT_TYPE_INT: - av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<int>"); - break; - case AV_OPT_TYPE_INT64: - av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<int64>"); - break; - case AV_OPT_TYPE_DOUBLE: - av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<double>"); - break; - case AV_OPT_TYPE_FLOAT: - av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<float>"); - break; - case AV_OPT_TYPE_STRING: - av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<string>"); - break; - case AV_OPT_TYPE_RATIONAL: - av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<rational>"); - break; - case AV_OPT_TYPE_BINARY: - av_log(av_log_obj, AV_LOG_INFO, "%-7s ", "<binary>"); - break; - case AV_OPT_TYPE_CONST: - default: - av_log(av_log_obj, AV_LOG_INFO, "%-7s ", ""); - break; + case AV_OPT_TYPE_FLAGS: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<flags>"); + break; + case AV_OPT_TYPE_INT: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int>"); + break; + case AV_OPT_TYPE_INT64: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<int64>"); + break; + case AV_OPT_TYPE_UINT64: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<uint64>"); + break; + case AV_OPT_TYPE_DOUBLE: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<double>"); + break; + case AV_OPT_TYPE_FLOAT: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<float>"); + break; + case AV_OPT_TYPE_STRING: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<string>"); + break; + case AV_OPT_TYPE_RATIONAL: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<rational>"); + break; + case AV_OPT_TYPE_BINARY: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<binary>"); + break; + case AV_OPT_TYPE_IMAGE_SIZE: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<image_size>"); + break; + case AV_OPT_TYPE_VIDEO_RATE: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<video_rate>"); + break; + case AV_OPT_TYPE_PIXEL_FMT: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<pix_fmt>"); + break; + case AV_OPT_TYPE_SAMPLE_FMT: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<sample_fmt>"); + break; + case AV_OPT_TYPE_DURATION: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<duration>"); + break; + case AV_OPT_TYPE_COLOR: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<color>"); + break; + case AV_OPT_TYPE_CHANNEL_LAYOUT: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<channel_layout>"); + break; + case AV_OPT_TYPE_BOOL: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<boolean>"); + break; + case AV_OPT_TYPE_CONST: + default: + av_log(av_log_obj, AV_LOG_INFO, "%-12s ", ""); + break; } av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_ENCODING_PARAM) ? 'E' : '.'); av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_DECODING_PARAM) ? 'D' : '.'); - av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM) ? 'V' : '.'); - av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM) ? 'A' : '.'); + av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_FILTERING_PARAM)? 'F' : '.'); + av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM ) ? 'V' : '.'); + av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM ) ? 'A' : '.'); av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.'); av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_EXPORT) ? 'X' : '.'); av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_READONLY) ? 'R' : '.'); if (opt->help) av_log(av_log_obj, AV_LOG_INFO, " %s", opt->help); + + if (av_opt_query_ranges(&r, obj, opt->name, AV_OPT_SEARCH_FAKE_OBJ) >= 0) { + switch (opt->type) { + case AV_OPT_TYPE_INT: + case AV_OPT_TYPE_INT64: + case AV_OPT_TYPE_UINT64: + case AV_OPT_TYPE_DOUBLE: + case AV_OPT_TYPE_FLOAT: + case AV_OPT_TYPE_RATIONAL: + for (i = 0; i < r->nb_ranges; i++) { + av_log(av_log_obj, AV_LOG_INFO, " (from "); + log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_min); + av_log(av_log_obj, AV_LOG_INFO, " to "); + log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_max); + av_log(av_log_obj, AV_LOG_INFO, ")"); + } + break; + } + av_opt_freep_ranges(&r); + } + + if (opt->type != AV_OPT_TYPE_CONST && + opt->type != AV_OPT_TYPE_BINARY && + !((opt->type == AV_OPT_TYPE_COLOR || + opt->type == AV_OPT_TYPE_IMAGE_SIZE || + opt->type == AV_OPT_TYPE_STRING || + opt->type == AV_OPT_TYPE_VIDEO_RATE) && + !opt->default_val.str)) { + av_log(av_log_obj, AV_LOG_INFO, " (default "); + switch (opt->type) { + case AV_OPT_TYPE_BOOL: + av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(get_bool_name(opt->default_val.i64), "invalid")); + break; + case AV_OPT_TYPE_FLAGS: { + char *def_flags = get_opt_flags_string(obj, opt->unit, opt->default_val.i64); + if (def_flags) { + av_log(av_log_obj, AV_LOG_INFO, "%s", def_flags); + av_freep(&def_flags); + } else { + av_log(av_log_obj, AV_LOG_INFO, "%"PRIX64, opt->default_val.i64); + } + break; + } + case AV_OPT_TYPE_DURATION: { + char buf[25]; + format_duration(buf, sizeof(buf), opt->default_val.i64); + av_log(av_log_obj, AV_LOG_INFO, "%s", buf); + break; + } + case AV_OPT_TYPE_INT: + case AV_OPT_TYPE_UINT64: + case AV_OPT_TYPE_INT64: { + const char *def_const = get_opt_const_name(obj, opt->unit, opt->default_val.i64); + if (def_const) + av_log(av_log_obj, AV_LOG_INFO, "%s", def_const); + else + log_value(av_log_obj, AV_LOG_INFO, opt->default_val.i64); + break; + } + case AV_OPT_TYPE_DOUBLE: + case AV_OPT_TYPE_FLOAT: + log_value(av_log_obj, AV_LOG_INFO, opt->default_val.dbl); + break; + case AV_OPT_TYPE_RATIONAL: { + AVRational q = av_d2q(opt->default_val.dbl, INT_MAX); + av_log(av_log_obj, AV_LOG_INFO, "%d/%d", q.num, q.den); } + break; + case AV_OPT_TYPE_PIXEL_FMT: + av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(av_get_pix_fmt_name(opt->default_val.i64), "none")); + break; + case AV_OPT_TYPE_SAMPLE_FMT: + av_log(av_log_obj, AV_LOG_INFO, "%s", (char *)av_x_if_null(av_get_sample_fmt_name(opt->default_val.i64), "none")); + break; + case AV_OPT_TYPE_COLOR: + case AV_OPT_TYPE_IMAGE_SIZE: + case AV_OPT_TYPE_STRING: + case AV_OPT_TYPE_VIDEO_RATE: + av_log(av_log_obj, AV_LOG_INFO, "\"%s\"", opt->default_val.str); + break; + case AV_OPT_TYPE_CHANNEL_LAYOUT: + av_log(av_log_obj, AV_LOG_INFO, "0x%"PRIx64, opt->default_val.i64); + break; + } + av_log(av_log_obj, AV_LOG_INFO, ")"); + } + av_log(av_log_obj, AV_LOG_INFO, "\n"); if (opt->unit && opt->type != AV_OPT_TYPE_CONST) opt_list(obj, av_log_obj, opt->unit, req_flags, rej_flags); @@ -596,41 +1290,66 @@ int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags) void av_opt_set_defaults(void *s) { + av_opt_set_defaults2(s, 0, 0); +} + +void av_opt_set_defaults2(void *s, int mask, int flags) +{ const AVOption *opt = NULL; while ((opt = av_opt_next(s, opt))) { + void *dst = ((uint8_t*)s) + opt->offset; + + if ((opt->flags & mask) != flags) + continue; + if (opt->flags & AV_OPT_FLAG_READONLY) continue; switch (opt->type) { - case AV_OPT_TYPE_CONST: - /* Nothing to be done here */ - break; - case AV_OPT_TYPE_FLAGS: - case AV_OPT_TYPE_INT: - case AV_OPT_TYPE_INT64: - av_opt_set_int(s, opt->name, opt->default_val.i64, 0); + case AV_OPT_TYPE_CONST: + /* Nothing to be done here */ + break; + case AV_OPT_TYPE_BOOL: + case AV_OPT_TYPE_FLAGS: + case AV_OPT_TYPE_INT: + case AV_OPT_TYPE_INT64: + case AV_OPT_TYPE_UINT64: + case AV_OPT_TYPE_DURATION: + case AV_OPT_TYPE_CHANNEL_LAYOUT: + case AV_OPT_TYPE_PIXEL_FMT: + case AV_OPT_TYPE_SAMPLE_FMT: + write_number(s, opt, dst, 1, 1, opt->default_val.i64); + break; + case AV_OPT_TYPE_DOUBLE: + case AV_OPT_TYPE_FLOAT: { + double val; + val = opt->default_val.dbl; + write_number(s, opt, dst, val, 1, 1); + } break; - case AV_OPT_TYPE_DOUBLE: - case AV_OPT_TYPE_FLOAT: - { - double val; - val = opt->default_val.dbl; - av_opt_set_double(s, opt->name, val, 0); - } - break; - case AV_OPT_TYPE_RATIONAL: - { - AVRational val; - val = av_d2q(opt->default_val.dbl, INT_MAX); - av_opt_set_q(s, opt->name, val, 0); - } - break; - case AV_OPT_TYPE_STRING: - av_opt_set(s, opt->name, opt->default_val.str, 0); + case AV_OPT_TYPE_RATIONAL: { + AVRational val; + val = av_d2q(opt->default_val.dbl, INT_MAX); + write_number(s, opt, dst, 1, val.den, val.num); + } break; - case AV_OPT_TYPE_BINARY: - case AV_OPT_TYPE_DICT: - /* Cannot set defaults for these types */ + case AV_OPT_TYPE_COLOR: + set_string_color(s, opt, opt->default_val.str, dst); + break; + case AV_OPT_TYPE_STRING: + set_string(s, opt, opt->default_val.str, dst); + break; + case AV_OPT_TYPE_IMAGE_SIZE: + set_string_image_size(s, opt, opt->default_val.str, dst); + break; + case AV_OPT_TYPE_VIDEO_RATE: + set_string_video_rate(s, opt, opt->default_val.str, dst); + break; + case AV_OPT_TYPE_BINARY: + set_string_binary(s, opt, opt->default_val.str, dst); + break; + case AV_OPT_TYPE_DICT: + /* Cannot set defaults for these types */ break; default: av_log(s, AV_LOG_DEBUG, "AVOption type %d of option %s not implemented yet\n", @@ -679,7 +1398,7 @@ static int parse_key_value_pair(void *ctx, const char **buf, return AVERROR(EINVAL); } - av_log(ctx, AV_LOG_DEBUG, "Setting value '%s' for key '%s'\n", val, key); + av_log(ctx, AV_LOG_DEBUG, "Setting entry with key '%s' to value '%s'\n", key, val); ret = av_opt_set(ctx, key, val, AV_OPT_SEARCH_CHILDREN); if (ret == AVERROR_OPTION_NOT_FOUND) @@ -710,6 +1429,118 @@ int av_set_options_string(void *ctx, const char *opts, return count; } +#define WHITESPACES " \n\t\r" + +static int is_key_char(char c) +{ + return (unsigned)((c | 32) - 'a') < 26 || + (unsigned)(c - '0') < 10 || + c == '-' || c == '_' || c == '/' || c == '.'; +} + +/** + * Read a key from a string. + * + * The key consists of is_key_char characters and must be terminated by a + * character from the delim string; spaces are ignored. + * + * @return 0 for success (even with ellipsis), <0 for failure + */ +static int get_key(const char **ropts, const char *delim, char **rkey) +{ + const char *opts = *ropts; + const char *key_start, *key_end; + + key_start = opts += strspn(opts, WHITESPACES); + while (is_key_char(*opts)) + opts++; + key_end = opts; + opts += strspn(opts, WHITESPACES); + if (!*opts || !strchr(delim, *opts)) + return AVERROR(EINVAL); + opts++; + if (!(*rkey = av_malloc(key_end - key_start + 1))) + return AVERROR(ENOMEM); + memcpy(*rkey, key_start, key_end - key_start); + (*rkey)[key_end - key_start] = 0; + *ropts = opts; + return 0; +} + +int av_opt_get_key_value(const char **ropts, + const char *key_val_sep, const char *pairs_sep, + unsigned flags, + char **rkey, char **rval) +{ + int ret; + char *key = NULL, *val; + const char *opts = *ropts; + + if ((ret = get_key(&opts, key_val_sep, &key)) < 0 && + !(flags & AV_OPT_FLAG_IMPLICIT_KEY)) + return AVERROR(EINVAL); + if (!(val = av_get_token(&opts, pairs_sep))) { + av_free(key); + return AVERROR(ENOMEM); + } + *ropts = opts; + *rkey = key; + *rval = val; + return 0; +} + +int av_opt_set_from_string(void *ctx, const char *opts, + const char *const *shorthand, + const char *key_val_sep, const char *pairs_sep) +{ + int ret, count = 0; + const char *dummy_shorthand = NULL; + char *av_uninit(parsed_key), *av_uninit(value); + const char *key; + + if (!opts) + return 0; + if (!shorthand) + shorthand = &dummy_shorthand; + + while (*opts) { + ret = av_opt_get_key_value(&opts, key_val_sep, pairs_sep, + *shorthand ? AV_OPT_FLAG_IMPLICIT_KEY : 0, + &parsed_key, &value); + if (ret < 0) { + if (ret == AVERROR(EINVAL)) + av_log(ctx, AV_LOG_ERROR, "No option name near '%s'\n", opts); + else + av_log(ctx, AV_LOG_ERROR, "Unable to parse '%s': %s\n", opts, + av_err2str(ret)); + return ret; + } + if (*opts) + opts++; + if (parsed_key) { + key = parsed_key; + while (*shorthand) /* discard all remaining shorthand */ + shorthand++; + } else { + key = *(shorthand++); + } + + av_log(ctx, AV_LOG_DEBUG, "Setting '%s' to value '%s'\n", key, value); + if ((ret = av_opt_set(ctx, key, value, 0)) < 0) { + if (ret == AVERROR_OPTION_NOT_FOUND) + av_log(ctx, AV_LOG_ERROR, "Option '%s' not found\n", key); + av_free(value); + av_free(parsed_key); + return ret; + } + + av_free(value); + av_free(parsed_key); + count++; + } + return count; +} + void av_opt_free(void *obj) { const AVOption *o = NULL; @@ -730,19 +1561,23 @@ void av_opt_free(void *obj) } } -int av_opt_set_dict(void *obj, AVDictionary **options) +int av_opt_set_dict2(void *obj, AVDictionary **options, int search_flags) { AVDictionaryEntry *t = NULL; AVDictionary *tmp = NULL; int ret = 0; + if (!options) + return 0; + while ((t = av_dict_get(*options, "", t, AV_DICT_IGNORE_SUFFIX))) { - ret = av_opt_set(obj, t->key, t->value, 0); + ret = av_opt_set(obj, t->key, t->value, search_flags); if (ret == AVERROR_OPTION_NOT_FOUND) - av_dict_set(&tmp, t->key, t->value, 0); - else if (ret < 0) { + ret = av_dict_set(&tmp, t->key, t->value, 0); + if (ret < 0) { av_log(obj, AV_LOG_ERROR, "Error setting option %s to value %s.\n", t->key, t->value); - break; + av_dict_free(&tmp); + return ret; } ret = 0; } @@ -751,6 +1586,11 @@ int av_opt_set_dict(void *obj, AVDictionary **options) return ret; } +int av_opt_set_dict(void *obj, AVDictionary **options) +{ + return av_opt_set_dict2(obj, options, 0); +} + const AVOption *av_opt_find(void *obj, const char *name, const char *unit, int opt_flags, int search_flags) { @@ -760,9 +1600,14 @@ const AVOption *av_opt_find(void *obj, const char *name, const char *unit, const AVOption *av_opt_find2(void *obj, const char *name, const char *unit, int opt_flags, int search_flags, void **target_obj) { - const AVClass *c = *(AVClass **)obj; + const AVClass *c; const AVOption *o = NULL; + if(!obj) + return NULL; + + c= *(AVClass**)obj; + if (!c) return NULL; @@ -783,7 +1628,7 @@ const AVOption *av_opt_find2(void *obj, const char *name, const char *unit, while (o = av_opt_next(obj, o)) { if (!strcmp(o->name, name) && (o->flags & opt_flags) == opt_flags && ((!unit && o->type != AV_OPT_TYPE_CONST) || - (unit && o->unit && !strcmp(o->unit, unit)))) { + (unit && o->type == AV_OPT_TYPE_CONST && o->unit && !strcmp(o->unit, unit)))) { if (target_obj) { if (!(search_flags & AV_OPT_SEARCH_FAKE_OBJ)) *target_obj = obj; @@ -811,24 +1656,45 @@ const AVClass *av_opt_child_class_next(const AVClass *parent, const AVClass *pre return NULL; } +void *av_opt_ptr(const AVClass *class, void *obj, const char *name) +{ + const AVOption *opt= av_opt_find2(&class, name, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ, NULL); + if(!opt) + return NULL; + return (uint8_t*)obj + opt->offset; +} + static int opt_size(enum AVOptionType type) { - switch (type) { + switch(type) { + case AV_OPT_TYPE_BOOL: case AV_OPT_TYPE_INT: case AV_OPT_TYPE_FLAGS: return sizeof(int); + case AV_OPT_TYPE_DURATION: + case AV_OPT_TYPE_CHANNEL_LAYOUT: case AV_OPT_TYPE_INT64: + case AV_OPT_TYPE_UINT64: return sizeof(int64_t); case AV_OPT_TYPE_DOUBLE: return sizeof(double); case AV_OPT_TYPE_FLOAT: return sizeof(float); case AV_OPT_TYPE_STRING: - return sizeof(uint8_t *); + return sizeof(uint8_t*); + case AV_OPT_TYPE_VIDEO_RATE: case AV_OPT_TYPE_RATIONAL: return sizeof(AVRational); case AV_OPT_TYPE_BINARY: - return sizeof(uint8_t *) + sizeof(int); + return sizeof(uint8_t*) + sizeof(int); + case AV_OPT_TYPE_IMAGE_SIZE: + return sizeof(int[2]); + case AV_OPT_TYPE_PIXEL_FMT: + return sizeof(enum AVPixelFormat); + case AV_OPT_TYPE_SAMPLE_FMT: + return sizeof(enum AVSampleFormat); + case AV_OPT_TYPE_COLOR: + return 4; } return AVERROR(EINVAL); } @@ -853,26 +1719,32 @@ int av_opt_copy(void *dst, const void *src) uint8_t **field_src8 = (uint8_t **)field_src; if (o->type == AV_OPT_TYPE_STRING) { - set_string(dst, o, *field_src8, field_dst8); + if (*field_dst8 != *field_src8) + av_freep(field_dst8); + *field_dst8 = av_strdup(*field_src8); if (*field_src8 && !*field_dst8) ret = AVERROR(ENOMEM); } else if (o->type == AV_OPT_TYPE_BINARY) { int len = *(int *)(field_src8 + 1); if (*field_dst8 != *field_src8) av_freep(field_dst8); - if (len) { - *field_dst8 = av_malloc(len); - if (!*field_dst8) { - ret = AVERROR(ENOMEM); - len = 0; - } - memcpy(*field_dst8, *field_src8, len); - } else { - *field_dst8 = NULL; + *field_dst8 = av_memdup(*field_src8, len); + if (len && !*field_dst8) { + ret = AVERROR(ENOMEM); + len = 0; } *(int *)(field_dst8 + 1) = len; } else if (o->type == AV_OPT_TYPE_CONST) { // do nothing + } else if (o->type == AV_OPT_TYPE_DICT) { + AVDictionary **sdict = (AVDictionary **) field_src; + AVDictionary **ddict = (AVDictionary **) field_dst; + if (*sdict != *ddict) + av_dict_free(ddict); + *ddict = NULL; + av_dict_copy(ddict, *sdict, 0); + if (av_dict_count(*sdict) != av_dict_count(*ddict)) + ret = AVERROR(ENOMEM); } else { int size = opt_size(o->type); if (size < 0) @@ -883,3 +1755,271 @@ int av_opt_copy(void *dst, const void *src) } return ret; } + +int av_opt_query_ranges(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags) +{ + int ret; + const AVClass *c = *(AVClass**)obj; + int (*callback)(AVOptionRanges **, void *obj, const char *key, int flags) = NULL; + + if (c->version > (52 << 16 | 11 << 8)) + callback = c->query_ranges; + + if (!callback) + callback = av_opt_query_ranges_default; + + ret = callback(ranges_arg, obj, key, flags); + if (ret >= 0) { + if (!(flags & AV_OPT_MULTI_COMPONENT_RANGE)) + ret = 1; + (*ranges_arg)->nb_components = ret; + } + return ret; +} + +int av_opt_query_ranges_default(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags) +{ + AVOptionRanges *ranges = av_mallocz(sizeof(*ranges)); + AVOptionRange **range_array = av_mallocz(sizeof(void*)); + AVOptionRange *range = av_mallocz(sizeof(*range)); + const AVOption *field = av_opt_find(obj, key, NULL, 0, flags); + int ret; + + *ranges_arg = NULL; + + if (!ranges || !range || !range_array || !field) { + ret = AVERROR(ENOMEM); + goto fail; + } + + ranges->range = range_array; + ranges->range[0] = range; + ranges->nb_ranges = 1; + ranges->nb_components = 1; + range->is_range = 1; + range->value_min = field->min; + range->value_max = field->max; + + switch (field->type) { + case AV_OPT_TYPE_BOOL: + case AV_OPT_TYPE_INT: + case AV_OPT_TYPE_INT64: + case AV_OPT_TYPE_UINT64: + case AV_OPT_TYPE_PIXEL_FMT: + case AV_OPT_TYPE_SAMPLE_FMT: + case AV_OPT_TYPE_FLOAT: + case AV_OPT_TYPE_DOUBLE: + case AV_OPT_TYPE_DURATION: + case AV_OPT_TYPE_COLOR: + case AV_OPT_TYPE_CHANNEL_LAYOUT: + break; + case AV_OPT_TYPE_STRING: + range->component_min = 0; + range->component_max = 0x10FFFF; // max unicode value + range->value_min = -1; + range->value_max = INT_MAX; + break; + case AV_OPT_TYPE_RATIONAL: + range->component_min = INT_MIN; + range->component_max = INT_MAX; + break; + case AV_OPT_TYPE_IMAGE_SIZE: + range->component_min = 0; + range->component_max = INT_MAX/128/8; + range->value_min = 0; + range->value_max = INT_MAX/8; + break; + case AV_OPT_TYPE_VIDEO_RATE: + range->component_min = 1; + range->component_max = INT_MAX; + range->value_min = 1; + range->value_max = INT_MAX; + break; + default: + ret = AVERROR(ENOSYS); + goto fail; + } + + *ranges_arg = ranges; + return 1; +fail: + av_free(ranges); + av_free(range); + av_free(range_array); + return ret; +} + +void av_opt_freep_ranges(AVOptionRanges **rangesp) +{ + int i; + AVOptionRanges *ranges = *rangesp; + + if (!ranges) + return; + + for (i = 0; i < ranges->nb_ranges * ranges->nb_components; i++) { + AVOptionRange *range = ranges->range[i]; + if (range) { + av_freep(&range->str); + av_freep(&ranges->range[i]); + } + } + av_freep(&ranges->range); + av_freep(rangesp); +} + +int av_opt_is_set_to_default(void *obj, const AVOption *o) +{ + int64_t i64; + double d, d2; + float f; + AVRational q; + int ret, w, h; + char *str; + void *dst; + + if (!o || !obj) + return AVERROR(EINVAL); + + dst = ((uint8_t*)obj) + o->offset; + + switch (o->type) { + case AV_OPT_TYPE_CONST: + return 1; + case AV_OPT_TYPE_BOOL: + case AV_OPT_TYPE_FLAGS: + case AV_OPT_TYPE_PIXEL_FMT: + case AV_OPT_TYPE_SAMPLE_FMT: + case AV_OPT_TYPE_INT: + case AV_OPT_TYPE_CHANNEL_LAYOUT: + case AV_OPT_TYPE_DURATION: + case AV_OPT_TYPE_INT64: + case AV_OPT_TYPE_UINT64: + read_number(o, dst, NULL, NULL, &i64); + return o->default_val.i64 == i64; + case AV_OPT_TYPE_STRING: + str = *(char **)dst; + if (str == o->default_val.str) //2 NULLs + return 1; + if (!str || !o->default_val.str) //1 NULL + return 0; + return !strcmp(str, o->default_val.str); + case AV_OPT_TYPE_DOUBLE: + read_number(o, dst, &d, NULL, NULL); + return o->default_val.dbl == d; + case AV_OPT_TYPE_FLOAT: + read_number(o, dst, &d, NULL, NULL); + f = o->default_val.dbl; + d2 = f; + return d2 == d; + case AV_OPT_TYPE_RATIONAL: + q = av_d2q(o->default_val.dbl, INT_MAX); + return !av_cmp_q(*(AVRational*)dst, q); + case AV_OPT_TYPE_BINARY: { + struct { + uint8_t *data; + int size; + } tmp = {0}; + int opt_size = *(int *)((void **)dst + 1); + void *opt_ptr = *(void **)dst; + if (!opt_size && (!o->default_val.str || !strlen(o->default_val.str))) + return 1; + if (!opt_size || !o->default_val.str || !strlen(o->default_val.str )) + return 0; + if (opt_size != strlen(o->default_val.str) / 2) + return 0; + ret = set_string_binary(NULL, NULL, o->default_val.str, &tmp.data); + if (!ret) + ret = !memcmp(opt_ptr, tmp.data, tmp.size); + av_free(tmp.data); + return ret; + } + case AV_OPT_TYPE_DICT: + /* Binary and dict have not default support yet. Any pointer is not default. */ + return !!(*(void **)dst); + case AV_OPT_TYPE_IMAGE_SIZE: + if (!o->default_val.str || !strcmp(o->default_val.str, "none")) + w = h = 0; + else if ((ret = av_parse_video_size(&w, &h, o->default_val.str)) < 0) + return ret; + return (w == *(int *)dst) && (h == *((int *)dst+1)); + case AV_OPT_TYPE_VIDEO_RATE: + q = (AVRational){0, 0}; + if (o->default_val.str) { + if ((ret = av_parse_video_rate(&q, o->default_val.str)) < 0) + return ret; + } + return !av_cmp_q(*(AVRational*)dst, q); + case AV_OPT_TYPE_COLOR: { + uint8_t color[4] = {0, 0, 0, 0}; + if (o->default_val.str) { + if ((ret = av_parse_color(color, o->default_val.str, -1, NULL)) < 0) + return ret; + } + return !memcmp(color, dst, sizeof(color)); + } + default: + av_log(obj, AV_LOG_WARNING, "Not supported option type: %d, option name: %s\n", o->type, o->name); + break; + } + return AVERROR_PATCHWELCOME; +} + +int av_opt_is_set_to_default_by_name(void *obj, const char *name, int search_flags) +{ + const AVOption *o; + void *target; + if (!obj) + return AVERROR(EINVAL); + o = av_opt_find2(obj, name, NULL, 0, search_flags, &target); + if (!o) + return AVERROR_OPTION_NOT_FOUND; + return av_opt_is_set_to_default(target, o); +} + +int av_opt_serialize(void *obj, int opt_flags, int flags, char **buffer, + const char key_val_sep, const char pairs_sep) +{ + const AVOption *o = NULL; + uint8_t *buf; + AVBPrint bprint; + int ret, cnt = 0; + const char special_chars[] = {pairs_sep, key_val_sep, '\0'}; + + if (pairs_sep == '\0' || key_val_sep == '\0' || pairs_sep == key_val_sep || + pairs_sep == '\\' || key_val_sep == '\\') { + av_log(obj, AV_LOG_ERROR, "Invalid separator(s) found."); + return AVERROR(EINVAL); + } + + if (!obj || !buffer) + return AVERROR(EINVAL); + + *buffer = NULL; + av_bprint_init(&bprint, 64, AV_BPRINT_SIZE_UNLIMITED); + + while (o = av_opt_next(obj, o)) { + if (o->type == AV_OPT_TYPE_CONST) + continue; + if ((flags & AV_OPT_SERIALIZE_OPT_FLAGS_EXACT) && o->flags != opt_flags) + continue; + else if (((o->flags & opt_flags) != opt_flags)) + continue; + if (flags & AV_OPT_SERIALIZE_SKIP_DEFAULTS && av_opt_is_set_to_default(obj, o) > 0) + continue; + if ((ret = av_opt_get(obj, o->name, 0, &buf)) < 0) { + av_bprint_finalize(&bprint, NULL); + return ret; + } + if (buf) { + if (cnt++) + av_bprint_append_data(&bprint, &pairs_sep, 1); + av_bprint_escape(&bprint, o->name, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0); + av_bprint_append_data(&bprint, &key_val_sep, 1); + av_bprint_escape(&bprint, buf, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0); + av_freep(&buf); + } + } + av_bprint_finalize(&bprint, buffer); + return 0; +} |
